In the meantime, researchers will need an address to determine a census enumeration district -- a way to carve up the map into 147,000 geographic areas for surveying -- to identify where someone lived and then browse the records.

Here are step-by-step instructions on how to find records in the census:

1. To start, you'll need to know the address or approximate address of where the person or people were living by April 1, 1940.